JP3005705B2 - Adhesive dust removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base material such as paper, plastic film, metal sheet, steel plate (metal plate), plywood (wood board), cardboard, etc., which is conveyed in a printing apparatus or a laminating apparatus, or to magnetic recording. It adheres to the surface of a base material such as paper or plastic film conveyed in a medium laminating device, or a flat base material such as a magnetic recording medium sheet or a magnetic recording medium plate conveyed in a magnetic recording device. The present invention relates to a dust removing device including an adhesive dust removing roll mainly used for removing waste dust.

[0002]

2. Description of the Related Art The inventor of the present invention has made various inventions concerning this type of dust removing apparatus, and disclosed in Japanese Patent Laid-Open No. 63-12388 (Japanese Patent Publication No. 4-61705) and Japanese Patent Laid-Open No. 1-258951 (Japanese Patent Publication No.
-47284) and JP-A-2-227177 (JP-B-5-227).
79395), JP-A-5-24184, JP-A-5-30
9349 and the like. This type of trash removal device
It is used by being attached to a printing device, a laminating device, a magnetic recording medium laminating device, a magnetic recording device, a corona discharge treatment device, an etching device, etc., in which a substrate from which dust is to be removed is conveyed continuously at high speed. The inventor of the present invention provided a cleaning device in addition to a dust removing device in order to prevent the dust removing function from being degraded by dust attached to the surface of the dust removing roll during use (see JP-A-1-258951 and JP-A-2-25895). -227
177, JP-A-5-24184) and several dust-removing devices are installed and used alternately in order to avoid a stoppage of a printing device or the like accompanying the cleaning (Japanese Patent Laid-Open No. 25895/1990).
Various improvements of 1) are made.

[0003]

In the above-mentioned conventional dust removing apparatus, when the dust removing function is deteriorated during use, whether or not the dust removing roll should be cleaned is visually determined by an operator. I have. However, in the case of visual inspection, there are variations in judgments caused by individual differences and fatigue levels of workers,
Or, the judgment may vary due to a change in ambient lighting or a change in the color tone of dust that differs depending on the base material,
The dust removal accuracy of the dust removal device varies.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to improve the accuracy of dust removal in a dust removal device and to prevent product defects caused on processed products due to dust attached to a substrate.

[0005]

A dust removing device 13 according to the present invention is provided with a dust removing roll 11 having a sticky surface and rotatably mounted on the dust removing device 11 and a dust removing roll 11 facing the peripheral surface of the dust removing roll 11. It is provided with a surface fouling detection sensor 12 that is
You.

A sensing sensor 12 is mounted so as to be able to run on a rail 14 provided with rails 14 in parallel with the axis of the dust removing roll 11, and one sensor 12 detects surface dirt over the entire width of the dust removing roll 11. It is better to do it.

[0007] The dust removal function of the dust removal roll 11 decreases in accordance with the amount of dust adhered to the surface thereof. When the surface of the dust removal roll 11 is completely covered with dust, the dust removal function is completely removed. The dust to be coated is peeled off and adheres to the substrate 18, and the use of the dust removing roll 11 causes the substrate 18 to be soiled. Sensing sensor 1
2 detects the degree of contamination of the surface of the dust removal roll 11 generated by adhesion of dust attached to the base material 18, and the amount of dust adhered to the dust removal roll 11 is a certain amount that impairs the dust removal function. When the limit is reached, trash removal roll 1
The replacement or cleaning of 1 is notified in advance, and the determination that the limit has been reached may be made on the basis of the color density of the surface of the dust removal roll.

[0008] JP-A 1-258951, JP-A 2-22
7177, Japanese Patent Application Laid-Open No. 5-24184, etc., the dust removal device 13 provided with the cleaning device 17 disclosed in the above-mentioned prior invention.
In the above, the dust removing roll 11 is supported between a pair of arms 16 and 16 which are driven to reciprocate toward and away from the base material transfer surface 15 of the base material transfer device.
It may be attached to a retreat portion from the base material transport surface 15. In this case, a rail 14 on which the sensing sensor 12 runs is provided between a pair of arms 16 that support the dust removal roll 11.
When the dust removing roll 11 is supported in parallel and the dust removing roll 11 is moved to the cleaning device 17 for cleaning, the sensing sensor 12 also moves to the cleaning device 17 integrally with the dust removing roll 11, It is preferable that the degree of cleaning of the dust removing roll peripheral surface (11) can be automatically controlled.

The sensing sensor 12 includes a color density difference detection method using a color densitometer, a contaminated area integration method using a CCD camera, a capacitance change detection method, a reflected light amount detection method, a laser light displacement detection method, an optical interference. Various types of sensors such as a degree detection method, a magnetic force fluctuation detection method, and an ultrasonic displacement detection method are used. The dust adhering to the base material 18 often differs depending on the material of the base material 18. When the base material 18 is made of metal, the dust adhering to the material is also often made of metal. When metallic dust adheres to the surface of the
Since the physical properties such as the dielectric constant and magnetic properties of the surface change, the degree of change in the physical properties determines whether dust adheres to the surface of the dust removal roll 11 to a certain limit that impairs the dust removal function. Can be detected. In order to detect the amount of dust attached according to the degree of change in physical characteristics, use a capacitor capacitance change detection method, laser light displacement detection method, magnetic force fluctuation detection method, and ultrasonic displacement detection method. Can be done. As commercially available sensing sensors, Densitograph APS-3 (trade name of Kohan Densitograph Co.), COSAR Smart 200 densitometer (trade name of Seishin Corporation), OC
An R tester MUM-20-D (trade name of Uchida Yoko Co., Ltd.), a color / gloss determination sensor PI-C41 (trade name of Keyence Corporation) and the like are exemplified.

Most of the dust adhering to the dust removing roll 11 is generated from the base material 18 due to rubbing of the base material 18 or cutting of the base material 18 or the like, and has a color inherent to the base material. . Therefore, a black dust removing roll is used for the base material 18 that generates white dust such as paper or plastic film, and for a steel plate or the like and a metal base material 18 where a black oxide is easily generated. It is preferable to use a white dust removing roll to increase the contrast between the dust removing roll surface (11) and the color of the dust.

When the amount of dust adhered to the dust removing roll 11 reaches a certain limit which impairs the dust removing function, the replacement or cleaning of the dust removing roll 11 is performed by an instruction signal generated by the sensor 12 at that time. Automatically.

[0012]

First Embodiment The present invention will be described below with reference to the embodiments shown in FIGS. In the first embodiment shown in the figure, two dust removal devices 13 are provided on the upper side and the lower side, respectively, sandwiching the transport surface on which the substrate is transported.
A cleaning device 17 including a cleaning roll 19 for cleaning the dust removal rolls 11A and 11B and a wiping roll 20 is provided between the original dust removal devices 13A and 13B.

A total of four upper and lower trash removal devices 13
A · 13B (13A · 13B) is a fixed frame 21 illustrated in FIG. 2 and two swing links 22 and 23 of a first link and a second link that are joined to the frame 21 by pins.
Between the arms 16. 1 protruding from the connecting link 24 of the four-bar double lever crank mechanism comprising a pin-connected connecting link 24 connecting the swing links 22 and 23.
6, a dust removing roll 11 is rotatably supported, and between the left and right arms 16 and 16, a screw bolt 25 supported in parallel with the dust removing roll 11 and a carrier 26 running on the pipe rail 14 are provided with a sensor sensor 12. It is configured to be mounted on the dust removal roll 11 (FIG. 1).

The second link 23 is shorter than the first link 22, and its rotation shaft 27 is supported by the frame 21 inside a circular path 28 drawn by the rotation of the first link 22. The circular trajectory 29 drawn by rotating the rotation shaft 27 around the center protrudes outside the circular trajectory 28 drawn by the first link 22 rotating around the rotation shaft 35.

When the second link 23 swings and rotates, the leading end of the arm 16 moves between the transfer surface 15 of the base material 18 and the cleaning device 17.
Between them, an arc-shaped trajectory 30 that is depressed toward the rotation axis side (27/35) of the first link 22 and the second link 23 is drawn. When the position of the tip of the arm 16 fluctuates on the cleaning device side (17), the dust removal roll 11
Moves in and out between the washing roll 19 and the wiping roll 20,
The cleaning roll 19 is cleaned while fitted between the cleaning roll 19 and the wiping roll 20, and the cleaning liquid attached to the surface is wiped off by the wiping roll 20.

When one of the cleaning rolls 19 and the wiping roll 20 rotates in contact with the dust removing roll 11,
The other roll can be moved up and down so as to separate from the dust removal roll 11.

Reference numeral 31 denotes a servomotor for driving the screw bolt 25 to rotate. The screw bolt 25 is screwed into a ball screw (not shown) in the carrier 26. When the screw bolt 25 rotates in the forward and reverse directions, the carrier 26 reciprocates over the entire width of the dust removal roll 11, and the sensing sensor 12 mounted thereon is mounted. The dust adhering state on the surface of the dust removing roll 11 is sensed by this, and the second link 23 is rotated and moved by the transmitted instruction signal, and the dust removing roll 11 separates from the transport surface 15 to be cleaned.
Go to and be washed. Then, the sensing sensor 12
Transmits an instruction signal by detecting the cleaning state of the surface of the dust removal roll 11 and transmits the instruction signal according to the instruction signal.
Rotates in the reverse direction, and the dust removal roll 11 separates from the cleaning device 17 and returns to the transport surface 15.

The pair of dust removing rolls 11A and 11B (1
1A and 11B) are alternately washed, and in the washing process, one of the dust removing rolls 11 comes into contact with the base material 18 to constantly perform the dust removing action.

In this embodiment, the sensing sensor 12 is moved integrally with the dust removing roll 11 carried on the arm 16, but this is not always necessary. It can also be run on a fixed rail mounted near the surface. In this case, the cleaning device 17 may be provided with the sensing sensor 12 similarly. In the figure, 32 is an electric wire connected to the sensing sensor, 33 is a pin junction between the first link and the connection link, and 34 is a pin junction between the second link and the connection link.

[0020]

Second Embodiment In the second embodiment shown in FIG. 3, two dust removing devices 13 are provided on the front side and the back side of the transfer surface of the base material 18, respectively. A cleaning device 17 for cleaning the dust removal rolls 11A and 11B is provided between the removal devices 13A and 13B, and the dust removal rolls 11A and 11B (11
A.11B) is carried by a swing arm 16 attached to a rotating shaft 36, and alternately rotates and moves to a cleaning device 17.

A rail 14 and a screw bolt 25 are mounted on the arm 16 in parallel with the dust removing roll 11, and the sensing sensor 12 is mounted on a carrier 26 and mounted on the dust removing roll 11, as in the first embodiment. From end to end.

The cleaning device 17 includes a delivery shaft 41 for sending a roll-wound felt 39 to a carrier 38 that reciprocates left and right on a rail 37 parallel to a rotating shaft 36, and a winding shaft 40 for winding the same. , A guide roll 42, and a spray 43 for supplying a washing liquid to the felt 39. The felt 39 is pressed against the dust removing roll 11 rotated to the cleaning device 17 by the guide roll 42, and the carrier 38 on which the cleaning device 17 is mounted reciprocates on the rail 37, from the end of the dust removing roll 11. It will be washed to the edge.

[0023]

Third Embodiment In the third embodiment shown in FIG. 4, the detection sensor 12 includes a dust removing roll 11 and a cleaning device 17.
It does not move even if it moves to
1 is a fixed type that does not move in parallel with the axis. In the case of the fixed type as described above, the sensing sensors 12 are provided at both ends of the dust removing roll 11, one at each end (two in total), preferably at least at three locations at both ends and the intermediate portion of the dust removing roll 11 (two in total). ). Reference numeral 44 denotes a fixing rod to which the sensing sensor 12 is attached, which is fixed to the frame 21.

[0024]

As described above, according to the present invention, since the sensing sensor 12 for detecting surface dirt is provided toward the peripheral surface of the dust removing roll 11 constituting the adhesive dust removing device 13, the dust removing roll is operated during the operation. It is automatically determined whether or not the amount of dust adhered to the surface of the surface 11 has reached a certain amount without visual observation. Due to a mistake in the judgment, the dust adhered to the dust removal roll 11 exceeding the adsorption limit, and the dust adhered. As-is substrate 18
Is passed through the dust removal roll 11 or the dust removal roll 1
The trouble that the dust adhered to 1 is peeled off and the base material 18 is re-contaminated is avoided. Therefore, the present invention can ensure the quality of the substrate, and is particularly effective in removing dust from a magnetic recording medium laminating apparatus or a magnetic recording apparatus in which dust adhering to the substrate causes fatal damage to the product. .

[Brief description of the drawings]

FIG. 1 is a perspective view of an adhesive dust removing apparatus according to a first embodiment of the present invention.

FIG. 2 is a side view of the adhesive dust removing apparatus according to the first embodiment of the present invention.

FIG. 3 is a perspective view of an adhesive dust removing apparatus according to a second embodiment of the present invention.

FIG. 4 is a perspective view of an adhesive dust removing apparatus according to a third embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 dust removing roll 12 sensing sensor 13 dust removing device 14 rail 15 transfer surface 16 arm 17 cleaning device 18 base material 19 cleaning roll 20 wiping roll 21 frame 22 first link 23 second link 24 connecting link 25 screw bolt 26 carrier 27 Rotating shaft 28 Circular locus 29 Circular locus 30 Arc-shaped regulation 31 Motor 32 Electric wire 33 Pin joint 34 Pin joint 35 Rotating shaft 36 Rotating shaft 37 Rail 38 Carrier 39 Felt 40 Winding shaft 41 Sending shaft 42 Guide roll 43 Spray 44 Fixed rod

Claims (4)

(57) [Claims] 1. (a) A substrate transport surface 15 of a substrate transport device
Arm 16 that is driven back and forth toward
And a dust removing roll 11 having a sticky surface,
A cleaning device 17 for cleaning the surface of the take-up roll 11;
Dirty feeling to detect the cleaning state of the surface of the take-up roll 11
Equipped with an intellectual sensor 12, and (b) the dust removal roll 11
It is rotatably supported between the pair of arms 16 and 16,
(C) The surface dirt detection sensor 12 is a dust removal roll.
11 supported between the pair of arms 16 and 16 parallel to the axis of 11
To the surface of the dust removal roll 11
(D) The cleaning device 17 includes a pair of
Dust on the retreating part from the substrate transport surface 15 of the
An adhesive dust removing device , which is attached to the surface of the removing roll 11 . 2. A surface contamination sensing sensor according to claim 1,
The adhesive dust removing apparatus according to claim 1, wherein the sir (12) is mounted on the rail (14) so as to run . 3. The cleaning device 17 according to claim 1,
Reciprocating on a rail 37 parallel to the dust removal roll 11
2. The adhesive dust removing device according to claim 1, wherein the device is mounted on a carrier 38. 3. 4. The pair of arms 16 according to claim 1,
16, dust removal roll 11, surface dirt detection sensor
-12 are provided on one side of the substrate transfer surface 15.
Adhesive dust removal apparatus according to supra claim 1, characterized in that.